FA-15810 / Numerics / Member archive
Singular hensel root tree: root residue digit placement · case 05
The exact singular hensel root tree result violates the stated contract at root residue digit placement.
Case contract
Input [polynomial coefficients,p,k], p prime and k>=1; enumerate all roots modulo p^k, including singular roots.
Why this case matters
Exact discrete arithmetic with observable algorithmic state; no floating point approximation is used.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| explicit oracle 0 | [[0], 27] | [[0, 9, 18], 27] | Failed |
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